System Sensor B401BR Product Manual

System Sensor B401BR Product Manual
I56-0352-007R
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
B401BR Plug-in Detector Base
For use with the following detectors: 1451, 2451, and 2451TH
Specifications
Base Diameter:
Base Height:
Weight:
Mounting:
6.2 inches (157 mm) typical
1.1 inches (29 mm) typical
0.3 lb. (130 g) typical
4 inch square box with or without plaster ring. Min. Depth: 1.5 inches
4 inch octagon box. Min. Depth: 1.5 inches
3-1/2 inch octagon box. Min. Depth: 1.5 inches
Operating Temperature Range:
–10° to 60°C (14° to 140°F)
NOTE: Do not install where normal ambient temperature extends beyond 0° to 49° (32° to 120°F)
Operating Humidity Range:
10% to 93% Relative Humidity
Electrical Ratings — includes base and detector
System Voltage:
24 VDC
Maximum Ripple Voltage:
4 Volts peak to peak
Start-up Capacitance:
0.02 µF Maximum
Standby Ratings:
17 VDC Minimum
32 VDC Maximum
120 µA Maximum
Alarm Ratings:
10 mA Minimum at 10.5 VDC
62 mA Maximum at 32 VDC
The optional RA400Z/RA100Z Remote Annunciator operates within the specified detector alarm currents.
Reset Voltage:
2.50 VDC Minimum
Reset Time:
0.3 Sec Maximum
Start-up Time:
34.0 Sec Maximum
Before Installing
Please thoroughly read the System Sensor manual I56-407, Guide for Proper
Use of System Smoke Detectors, which provides detailed information on detector spacing, placement, zoning, wiring, and special applications. Copies of
this manual are available at no charge from System Sensor. (For installations
in Canada, refer to CAN4-S524, Standard for the Installation of Fire Alarm
Systems, and CEC Part 1, Sec. 32.)
best system performance, the power (+ and –) loop wires should be twisted
pair and installed in separate grounded conduit to protect the loop from electrical interference.
Smoke detectors and alarm system control panels have specifications for allowable loop resistance. Consult the control panel manufacturer’s specifications for the total loop resistance allowed for the particular model control
panel being used before wiring the detector loops.
NOTICE: This manual should be left with the owner/user of this equipment.
IMPORTANT: The detector used with this base must be tested and maintained
regularly following NFPA 72 requirements. The detector used with this base
should be cleaned at least once a year.
General Description
The plug-in detector base B401BR is used with System Sensor 400 Series
photoelectronic, ionization, and heat detector heads. The ability to accept
a variety of detector heads makes this base more versatile than equivalent
direct-wired models. Refer to the System Sensor catalog for other available
plug-in detector bases.
CAUTION
For system supervision — For terminals 2, 3, and 5 do not use looped wire under terminals. Break wire run to provide system supervision of connections.
Wire connections are made by simply stripping insulation from the end of the
wire, sliding the bare end of the wire under the clamping plate, and tightening
the clamping plate screw. Use the strip gauge molded into the base for ease of
wiring to terminals.
This B401BR base is intended for use in 2-wire systems, with screw terminals
provided for power, ground, and remote annunciator connections. The B401BR
base also contains a resistor to provide current limiting in the alarm state.
System Sensor smoke detectors and mounting bases are marked with a compatibility identifier located as the last digit of a five digit code stamped on the
back of the product. Connect detectors/mounting bases only to compatible
control units as indicated in System Sensor’s compatibility chart which contains a current list of UL listed control units and detector head/base combinations. A copy of this list is available from System Sensor upon request.
Mounting
This detector base mounts directly to 31⁄2 inch and 4 inch octagon boxes, and
4 inch square boxes (with or without plaster rings). To mount, remove decorative ring by turning it in either direction to unhook the snaps, then separate
the ring from the base.
The zone wiring of the detector base should be checked before the detector
heads are installed in them. To make this possible, this base contains a special spring-type shorting jumper. After a detector base is properly wired and
mounted on an electrical box, make sure that the jumper spring is in contact
with the base of Terminal 3. This temporary connection shorts the negative-in
and negative-out leads and permits the wiring of the loop to be checked for
continuity.
Install the base to the box using the screws supplied with the junction box and
the appropriate mounting slots in the base. Place decorative ring onto base,
then turn in either direction until the ring snaps in place (see Figure 1).
Installation Guidelines (Figure 2)
All wiring must be installed in compliance with the National Electrical Code
and the local codes having jurisdiction. Proper wire gauges should be used.
The conductors used to connect smoke detectors to control panels and accessory devices should be color-coded to prevent wiring mistakes. Improper connections can prevent a system from responding properly in the event of a fire.
Once all the detector bases have been wired and mounted, and the loop wiring has been checked, the detector heads may be installed in the bases. The
shorting spring in the base will disengage when the detector head is turned
into place.
For signal wiring (the wiring between interconnected detectors), it is recommended that the wire be no smaller than 18 gauge (1.0 square mm). Wire
sizes up to 12 gauge wire (2.5 square mm) may be used with the base. For
D450-02-00
1
I56-0352-007R
Tamper-resist Feature
CAUTION
Do not use the tamper resist feature if the XR5 removal tool is to be used.
This detector base also includes an optional tamper resist feature that, when
activated, prevents removal of the detector without the use of a tool.
To activate this feature, break the tab from the detector base, as shown in
Figure 3A, and install the detector. To remove the detector from the base once
the tamper resist feature has been activated, insert a small-bladed screwdriver
into the slot in the side of the base and press the plastic lever away from the
detector head (see Figure 3B). This allows the detector to be rotated counterclockwise and removed.
NOTE:
Head removal after the tamper resist feature has been activated
first requires removal of the decorative ring.
The tamper resist feature can be defeated by breaking and removing the plastic lever from the base. However, this permanently defeats the tamper resist
feature.
Figure 1. Mounting detector to box:
SNAP ON
DECORATIVE
RING
SHORTING
SPRING
SCREWS
(NOT SUPPLIED)
DETECTOR
BASE
BOX
(NOT SUPPLIED)
C0503-00
D450-02-00
2
I56-0352-007R
Figure 2. Typical wiring diagram for 2-wire detector systems:
NOTE: For system supervision - Do not loop wire under
terminals 2, 3, and 5. Break wire run to ensure
system supervision of connections.
2-WIRE CONTROL PANEL
–
2
–
2
1
+
–
3
5
+
4
REMOTE
ANNUNCIATOR
+
+
–
3
1
5
4
E
O
L
REMOTE
ANNUNCIATOR
OPTIONAL FAULT TOLERANT WIRING
C0593-00
Figure 3A. Activating tamperproof feature:
Figure 3B. Removing detector head from base:
PLASTIC LEVER
USE SMALL-BLADED SCREWDRIVER TO PUSH
PLASTIC LEVER IN DIRECTION OF ARROW
BREAK TAB AT DOTTED LINE BY
TWISTING TOWARD CENTER OF BASE
C0130-00
D450-02-00
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I56-0352-007R
Please refer to insert for the Limitations of Fire Alarm Systems
Three-Year Limited Warranty
Repair Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please
System Sensor warrants its enclosed smoke detector base to be free from defects in mainclude a note describing the malfunction and suspected cause of failure. The Company
terials and workmanship under normal use and service for a period of three years from
shall not be obligated to repair or replace units which are found to be defective because
date of manufacture. System Sensor makes no other express warranty for this smoke
of damage, unreasonable use, modifications, or alterations occurring after the date of
detector base. No agent, representative, dealer, or employee of the Company has the aumanufacture. In no case shall the Company be liable for any consequential or incidental
thority to increase or alter the obligations or limitations of this Warranty. The Company’s
damages for breach of this or any other Warranty, expressed or implied whatsoever, even
obligation of this Warranty shall be limited to the repair or replacement of any part of the
if the loss or damage is caused by the Company’s negligence or fault. Some states do not
smoke detector base which is found to be defective in materials or workmanship under
allow the exclusion or limitation of incidental or consequential damages, so the above
normal use and service during the three year period commencing with the date of manulimitation or exclusion may not apply to you. This Warranty gives you specific legal rights,
facture. After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a
and you may also have other rights which vary from state to state.
Return Authorization number, send defective units postage prepaid to: System Sensor,
D450-02-00
4
I56-0352-007R
©2009 System Sensor
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